<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>IFE2016_task4</title>
    <link rel="stylesheet" href="task4.css"/>
</head>
<body>
<div id="box">
    <div id="left-top"></div>
    <div id="right-bottom"></div>
</div>
</body>
</html>